Improvement in hydraulic hose



T. A. Dunas.

Hydraulic Hose.

Patented April 28,1874.

Ma@ b. /vef ffy Jiffy UNITED STATES PATENT OFFICE.

THEODORE A. DODGE, OF CAMBRIDGE, MASSACHUSETTS.

IMPROVEMENT IN HYDRAULIC HOSE.

Specification forming part of Letters Patent No. 150,304, dated April 28, 1874; application filed April 11,1e74.

To all whom t may concern.:

Ile it known that I, THEODORE A. DODGE, of,Oa1nbridge, in the county of Middlesex and State of lWassachusetta-hmie invented an Improvement in Ilydraulie Hose; and I do herehy' declare that the following, taken in connecA tion with the drawings which accompany and i'orm part of this specification, is a description et' ymy invention sufficient to enable those skilled in the artto practice it.

In the manufacture of' hydraulic hose, where each section of hose is formed of' a strip having its'edges lapped and united by suitable fastenings, thread sewing or stitching has been` and is used to a considerable extent to effect the permanent union of the lapped edges. As fire-enginehoseis subjected to very severe wear and attrition in being dragged over pavements,

-it is sometimes agrcat desideratuni to be able making the union by means of' wire and thread,

the i'nner portioiLof the seam being thread and the outer portieri wire. Preferably, the seam consists of acontinuous thread within the tube, and having for each' stitch or fastening a bow passed through the parts to be united, and secured by a short length of wire, or a wire bowl with hooking ends, the thread being drawn back after the wire is inserted, and the wire sinking into the outer surface, being stopped in one direction by its hooks, and in the opposite direction by the thread. The union is preferably effected by'an organization similar to that shown in United States Letters Patent N os. 86,592 and 146,280, modified for the peculiar Work to be done.

' In ho'semade of' astrip of woy'en material, the opposite edges of which are lapped and united by suitable fastenings, and especially when the strip is inner surfaced with rubber, the hose being vulcanized, the Apresence of' metal fastenings at the inner surfaceis objectionable because of' their oxidation at suoli surface, and because they -'i11terfere with the proper vulcanization of' the rubber coating, and thereby cause leakages but with my iuyention, I secure the 'adi-'antagc resulting' -f'rom theV metal fastening at the outer side of' the hose and a fastening at theinner surface that oxidizes no faster than the material of which the hose is niade, and that in -no way interferes with the perf'ect vulcanization of' the rubber which may forni the inner surface of' the tube.

The parts may be united by one seam, or by two or more parallel seams, and the parts to be united maybe formed with inner or o'uter welts, or with both or neither; and, infact, the construction, with the exception of' the peculiar union of' the lapped edges, may be like any .of' the constructions ot hose known to which such union is adapted.

, The drawing shows in outside View and in section a piece of hose embodying the invention.

a a denote the wires, and b the thread.

I claim- Hydraulic hose having the edges united by the iuterlocked wire and thread, substantially as shown and described.

THEO. A. DODGE. Witnesses:

FRANCIS GoULD, V M. W. FROTIIINGHAM. 

